Patents by Inventor Gordon M. Tomlinson

Gordon M. Tomlinson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5310518
    Abstract: A method and device for manufacturing curing bladders (2), whereby a curing mold (3) defines, via a first (4) and second (5) half mold and an inner core (6), an inner molding chamber (7) and an outer injection chamber (34) communicating with the inner chamber (7) and consisting of a variable-volume chamber of an injection cylinder (59); the outer chamber (34) being fed with a mass (35) of heated uncured rubber which is injected into the inner chamber (7) with the mold (3) closed and, when cured, is extracted from the mold (3) by opening the inner chamber (7) and extracting the inner core (6).
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: May 10, 1994
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Marco Franzini, Fabrizio Giovannucci, Attilio Pomenti, Gordon M. Tomlinson
  • Patent number: 5262115
    Abstract: A method and device for producing vehicle tire bead-bead filler assemblies (2), whereby green elastomeric material is injected, by means of an externally-cooled distribution tank (38), into a number of annular chambers (22) defined by two half molds (6, 7) closed about a substantially cylindrical inner core (8); an inner portion of each chamber (22) being occupied by a respective bead (3) preassembled onto the core (8), and an outer portion (32) of each chamber (22) constituting the molding chamber of a respective bead filler (4).
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: November 16, 1993
    Assignee: Bridgestone/Firestone, Inc.
    Inventor: Gordon M. Tomlinson
  • Patent number: 5256350
    Abstract: A method and device for manufacturing tire forming bladders (2), whereby a curing mold (3) defines, via first and second half molds (4, 5) and an inner core (6), an inner molding chamber (7) inside which a precured reinforcing ply (72) is optionally inserted; the mold (3) having an outer injection chamber (34) communicating with the inner chamber (7) and consisting of a variable-volume chamber of an injection cylinder (65); the outer chamber (34) being provided with a mass (35) of heated uncured rubber, which is injected into the inner chamber (7) with the mold (3) closed and, when cured, is extracted from the mold (3) by opening the inner chamber (7) and extracting the inner core (6).
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: October 26, 1993
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Marco Franzini, Fabrizio Giovannucci, Attilio Pomenti, Gordon M. Tomlinson